10 Pack 2.5v Slotted Base Multi Replacement Christmas Light Bulbs Generic baseless bulbs perfect for replacing old bulbs Each pack comes with 10 glass light bulbs - 2 bulbs per color (red, green, yellow, blue, and purple) 2.5v/0.17amp multi light bulbs with slotted base Fits virtually all mini Christmas light strings that use slotted base bulbs Bulbs with Balsam Hill specific bases are sold separately